CurtHagenlocher commented on code in PR #4884:
URL: https://github.com/apache/arrow-adbc/pull/4884#discussion_r4254708737


##########
csharp/src/Apache.Arrow.Adbc/C/CAdbcDriverImporter.cs:
##########
@@ -340,9 +340,16 @@ public unsafe override AdbcDatabase 
Open(IReadOnlyDictionary<string, string> par
                 {
                     if (result == null && nativeDatabase.private_data != null)
                     {
-                        using (CallHelper caller = new CallHelper())
+                        // Don't let a failed release hide the error that got 
us here
+                        try
+                        {
+                            using (CallHelper caller = new CallHelper())
+                            {

Review Comment:
   Good catch, thanks. Fixed in a2f3a62e6: the object-valued overload now 
releases the native database on failure, using the same cleanup as the 
string-valued one. The cleanup test now covers both overloads and checks that 
the release happens.



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